Funny you should mention it, I had my 72 core checked - complete dog. About 10 holes in it. I got the truck with it NOT connected which made me suspicious. The local radiator shop recored it for $55. Btw...your original post inspired me to haul it out. Especially when I have no engine and the seats are out. My ducting is an absolute mess too. Oh well. Call it 'job security'.